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Cushion|Lab Grown|IGI

1.50ct D SI1 Cushion Lab Grown Diamond

GD • D/SI1 • IGI LG529262305

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG529262305

Diamond specifications and retailer prices

From $355 SGD
$278 USD
As of November 1, 2026
Save $1,221 SGD (77%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,576 SGD at MOH London · As of November 1, 2026
View at MOH London

About this 1.5ct lab-grown cushion diamond

This 1.5ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG529262305 or 529262305. Listed at 13 retailers as of November 1, 2026, with prices from $355 to $1,576, a $1,221 spread on the same certified stone. MOH London lists it at $1,576. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.50
Carat
D
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.4°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG529262305
Dimensions7.40 × 6.19 × 4.19 mm
L/W Ratio1.20
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.40 mm6.19 mm1.50 ctD / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG529262305
Side View
Table 58.0%Crown 37.4°Girdle: MED-STKPavilion 37.8°Culet: NoneDepth 67.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $1,576 SGD|Low: $348 SGD|High: $1,649 SGD|Avg: $890 SGD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 3$355 SGD
Retailer 10$394 SGD
Retailer 2$438 SGD
Retailer 12$531 SGD
Retailer 4$644 SGD
Retailer 7$706 SGD
Retailer 13$712 SGD
Retailer 6$742 SGD
Retailer 9$988 SGD
Retailer 11$1,317 SGD
Retailer 5$1,331 SGD
Retailer 8$1,445 SGD
MOH London$1,576 SGD

42 data points across 13 retailers

13 retailers$355 SGD to $1,576 SGD

A
Cheapest Retailer
-
$355 SGD
$278 USD
Final sale: no returns
Retailer 2
-
$394 SGD
$308 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
$438 SGD
£270 GBP
View
B
Retailer 4
-
$531 SGD
$415 USD
View
B+
Retailer 5
-
$644 SGD
$504 USD
View
B+
Retailer 6
-
$706 SGD
€526 EUR
View
B+
Retailer 7
-
$712 SGD
$557 USD
View
B+
Retailer 8
-
$742 SGD
£457 GBP
View
B
Retailer 9
-
$988 SGD
$773 USD
View
B
Retailer 10
-
$1,317 SGD
$1,030 USD
View
B
Retailer 11
-
$1,331 SGD
$1,041 USD
View
B
Retailer 12
-
$1,445 SGD
$1,130 USD
View
Most Expensive
B
MOH London
LG529262305 · Nov 1
$1,576 SGD
£971 GBP
View
12 more retailers have this diamond
Prices start from $355 SGDSave up to $1,221 SGD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.50ct Cushion
$355 SGD